Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DR

Darrell Richards

DTDrilltec Patents & Technologies: 3 patents #3 of 19Top 20%
Caterpillar: 1 patents #4,437 of 8,398Top 55%
Tustin, CA: #303 of 1,327 inventorsTop 25%
California: #106,790 of 386,348 inventorsTop 30%
Overall (All Time): #975,790 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10793166 Method and system for providing object detection warning Sarah Elizabeth Schonert, Renita Ryan Metcalf, Kristen Ann Gerstner, Micheal David Valerio, Shailesh Babu Ramineni +2 more 2020-10-06
6367508 Thread protector Colin Rush, William Thornton, Henry Campbell King, Vincent Danko Grbic, Edgar Von Rosenberg 2002-04-09
6261037 Connector assembly William Thornton, Bryan C. Baker, Bernard Casteran, Cavin Foord 2001-07-17
6196270 Thread protector Colin Rush, William Thornton, Henry Campbell King, Vincent Danko Grbic, Edgar Von Rosenberg 2001-03-06
5922094 Water removal system 1999-07-13